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    Fan protection valve
    2.
    发明授权
    Fan protection valve 失效
    风扇保护阀

    公开(公告)号：US3556142A

    公开(公告)日：1971-01-19

    申请号：US3556142D

    申请日：1969-05-13

    Applicant: UNITED AIRCRAFT PROD

    Inventor： SABIN LE ROY J ,  HUGHES PAUL R

    IPC: F04D29/46 ,  F16K17/30 ,  F01B25/00

    CPC classification number: F16K17/30 ,  F04D29/464 ,  Y10T137/7869 ,  Y10T137/86019

    Abstract: Apparatus in a heat transfer system or the like. The open end of a duct normally supplied with air at high flow rates is controlled by a valve biased to a position of minimum restriction. Under conditions of high airflows, a created pressure difference moves the valve toward a position of maximum restriction. A fan, located in the duct to induce air flow in the absence of the normal supply, is protected thereby from damage caused by excessive windmilling.

    Differentiator in a cooling system
    7.
    发明授权
    Differentiator in a cooling system 失效
    冷却系统中的差速器

    公开(公告)号：US3651863A

    公开(公告)日：1972-03-28

    申请号：US3651863D

    申请日：1970-06-18

    Applicant: UNITED AIRCRAFT PROD

    Inventor： HUGHES PAUL R

    IPC: B64D13/00 ,  F01P11/02 ,  F25B45/00

    CPC classification number: B64D13/00 ,  F01P11/029 ,  Y10S165/005

    Abstract: A differentiator device used in a system circulating a liquid coolant, in which a biased pressure applying member moves to reflect changing temperature induced density of the coolant. A temperature scale is attached to the piston and is in such relative projecting relation to the device that temperature graduations thereon may be read by reference to a portion of the device. The amount of expansion volume may be visually indicated and may be simultaneously compared with an amount proper for the existing ambient temperature. Further, the scale is constructed for manipulation by which the pressure applying member may be preset in charging or filling the system, whereby to insure a properly charged system operative over the complete temperature range.

    Abstract translation: 用于循环液体冷却剂的系统中的微分装置，其中偏置的压力施加构件移动以反映冷却剂的变化温度感应密度。 温度标尺连接到活塞上并且与设备成这样的相对突出的关系，其中可以通过参考设备的一部分读取温度刻度。 膨胀体积的量可以在视觉上指示，并且可以与适用于现有环境温度的量同时进行比较。 此外，为了进行操作而构造刻度尺，通过该刻度可以在加压或填充系统时预先设置压力施加构件，从而确保在整个温度范围内操作的适当充气的系统。

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